Sectional feed-roll for planing and other machines.



L. B. WHI PPLB SECTIONAL FEED ROLL FOR PLANING AND OTHER MACHINES.APPLICATION FILED FEB. 10, 1908.

899,276, r Patented Sept. 22, 1908.

' ters.

UNITED STATES, PATENT OFFICE.

LELAND B. WHIPPLE, OF ROCHESTER, NEW YORK, ASSIGNOR TO AMERICAN WOODWORKING MACHINERY CO., OF ROCHESTER, NEW YORK, A CORPORATION OFPENNSYLVANIA.

SECTIONAL FEED -ROLL FOR PLANING AND OTHER MACHINES.

Specification of Letters Patent.

' Patented Sept. 22, 1908.

Application filed. February 10, 1908. Serial No. 415,267.

and State of New York, have invented a new and useful Improvement inSectional Feed- Rolls for Planing and other Machines, of which thefollowin 'is a specification.

My invention re ates to revolving rolls for feeding stock into a planingor other machine, in which the feeding surface is separated into shortsections for the purpose of feeding a number of strips of varyingthickness, and it consists principally in a novel disposition of spiralsprings on the inner peri hery of the yielding sections and a pecu iarconstruction of the driving members or lugs to operate the sections.

In the accompanying drawings Figure 1 is a transverse elevation of afeed roll section made according to my invention. Fig. 2 is a sideelevation; Fig. 3 is a cross section at Y,

.Z, Fig. 1. Fig. 4 is a cross section of the driving sleeve at W, X,Fig. 1.

A is a rin or shell constituting one section of a feed rol This isprovided on the internal periphery with lugs 0, against whichcorresponding lugs I) rest, said lugs I) being a part of, or securedrigidly to, the driving spider or sleeve B. Sleeve B is keyed orotherwise properly secured to the roll shaft 0 which is driven in anysuitable or usual manner in the direction indicated by the arrows. Thereare preferably eight of the lugs a, but there may be any even number ofthem as found desirable in rolls of different diame-' Lugs a are cutaway at one end to accommodate spiral springs 01, as indicated at c,Fig. 3. The springs d are arranged in two sets, and preferably havetheir seats in shallow recesses f, f, in lugs a, and projections e whichenter their ends may be provided. Opposite ends of the springs restsimilarly a ainst the driving lugs 12 on the sleeve B. T e springs areapproximatel tangential to an imaginary cylindrical surface parallel tothe exterior surface of shell A.

It will be noticed that one full set of springs is thus located near oneedge of a roll section, and the other set near the opposite edge, andalternate springs thus pass each other at an angle as shown in Fig. l;and furthermore that the lugs a, b, are cut away alternately so that thetwo sets of s rings lie in diiferent planes of rotation. The object ofthis arrangement is to provide as equally distributed tension aspossible to the roll sec tions by increasing the number of the springsand their points of contact upon the driver B and section A. At the sametime the increased length of the springs thus obtained is such that theyare much more durable than if they were disposed in the same plane inthe middle of the section, thus necessitating comparatively shortsprings. It will be further noted that the driving lugs a and b have awearing surface extending about two thirds of their length, enough onlybeing cut away from the ends of alternate lugs to allow the springs topass as shown in Figs. 3 and 4. This is an important point, because ithas been found by experience that these surfaces are subject to extremewear by constant use, no lubrication being possible.

The drawings, Figs. 1 and 2 show the roll section as in its normal orcentral position with reference to the shaft and driver B, but when inactual use the section becomes more or less eccentric thereto, thesprings retaining a constant pressure on the material under the section,and each lug b of the driver coming successively into action on thesection lugs a, as the motion continues; in fact one pair of lugs 11.,I), only are in contact at any one instant, each contiguous pairapproaching, touching and receding successively, so long as the rollsection is out of center.

It is not essential to the spirit of my invention that the sleeve B beemployed, but the spring receiving seats and driving lugs b can be apart of the shaft C or attached directly thereto.

Having thus described my invention, what I claim and desire to secure byLetters Pat ent is:

1. The combination in a sectional feed roll of an even number ofcompression springs arranged in two sets and operating tangentially, ornearly so, to the rotation of the roll, roll sections with internal lugshaving suitable seats at opposite ends of alternate lugs to receive oneend of said springs, a driving member having corresponding springreceiving lugs, whereby each set of springs acts alternately withreference to each other, but all act successively on the roll section asit rotates, substantially as set forth.

2. The combination in a sectional feed roll, of roll sections having aneven number of internal lugs, alternate lugs being cut away at oppositeends to accommodate tangential springs, corresponding lugs on a drivinmember also cut away alternately, all sa1d lugs being adapted to receiveand retain the ends of said springs, for the purposes set forth.

3. The combination in a sectional feed roll, of roll sections havinganeven number of internal lugs, a driving sleeve secured to the roll shaftand provided with a corre- 10 sponding number of driving lugs, eachcontiguous pair of lugs being cut away at one end only, to allowtangential springs to pass,

whereby maximum contact surface is obsubstantially as set forth.

LELAND B. WHIPPLE.

Witnesses:

' F. H. CLEMENT,

G. C. SOUTI-IARD.

